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Charleston (Customhouse Wharf) water levels in 2020
Annual rank4 / 107
vs. average24.2 cm
Highest monthly peak1.60 mOctober 2020
Monthly mean vs. previous year
| Month | 2020 (cm) | 2019 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 5.9 | 4.6 | 1.3 | 1.30 |
| Feb | 7.4 | 12.9 | -5.5 | 1.24 |
| Mar | 8.6 | 17.5 | -8.9 | 1.18 |
| Apr | 16.0 | 12.3 | 3.7 | 1.36 |
| May | 14.4 | 15.5 | -1.1 | 1.40 |
| Jun | 17.7 | 16.2 | 1.5 | 1.30 |
| Jul | 18.0 | 19.5 | -1.5 | 1.35 |
| Aug | 20.0 | 21.0 | -1.0 | 1.38 |
| Sep | 35.2 | 32.3 | 2.9 | 1.58 |
| Oct | 36.2 | 36.0 | 0.2 | 1.60 |
| Nov | 28.3 | 31.7 | -3.4 | 1.59 |
| Dec | 8.9 | 13.6 | -4.7 | 1.55 |
Nearby years (cm vs. average)
+20.2
+20.4
+16.7
+16.5
+25.5
+24.2
+22.0
+24.7
+27.3
+24.0
+18.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2020 annual mean water level ranked 4 of 107 years (24.2 cm vs. the period average).